baber/WOPTO huggingface dataset:
Patent GB-241687-A (GB)
Title: Improvement in and relating to alloys
IPC: C22C9/00
Filed: 1924-09-24
Abstract: 241,687. Marks, E. C. R., (Du Pont de Nemours & Co., E. I.). Sept. 24, 1924. Alloys.-A corrosion-resisting copper alloy contains silicon and manganese, the proportion of silicon being not less than, and preferably greater than, that of the manganese. The alloys may contain 3-15 per cent of silicon and 3.5-3 per cent of manganese, or 3-6.5 per cent of silicon and 0.5-0.8 per cent of manganese. The alloys may be made by melting the pure elements together, or preferably by the addition to copper of the required amount of an alloy of 15-20 per cent of manganese with 80-85 per cent of silicon; the product may be deoxidized by means of phosphor-copper or boron-copper. The alloys are preferably as free as possible from iron.
Patent GB-318366-A (GB)
Title: Improvements in or relating to the preparation of effect threads
IPC: D06P5/20
Filed: 1928-08-07
Abstract: 318,366. Ehrhardt, E. F., (Chemical Works, formerly Sandoz). Aug. 7, 1928. Yarns, treating with liquids and vapours.-The effect threads made by transforming cellulose fibres, without altering their structure, into cellulose mono- or di-acetate are steamed, preferably under pressure ; the resistance of the products to direct cotton dyes is thereby increased and products which contain a proportion of unaltered cellulose can thus be rendered completely resistant to such dyes. When the process is applied to effect threads made from mercerized cotton, the lustre of the threads may be increased. In examples (1) cotton yarn, transformed into cellulose monoacetate by the process of Specification 280,493, is steamed under an excess pressure of two atmospheres; the treated yarn shows increased resistance to direct dyes and to the injurious action of alkalies, for example, to mercerizing lyes, (2) bleached cotton yarn is treated for varying periods with an acetylating mixture consisting of zinc chloride, glacial acetic acid and acetic anhydride, and steamed; the yarns which have been steamed after a comparatively short treatment with the acetylating mixture show the same resistance to direct dyes as those which have been treated with the acetylating mixture for much longer periods without steaming, and (3) mercerized cotton yarn is treated with acetic acid of 98 per cent strength, hydroextracted, immersed for 6 hours' in an acetylating mixture consisting of zinc chloride, acetic anhydride and glacial acetic acid, dried and steamed under pressure; although not completely transformed into cellulose monoacetate, the treated yarn resists dyeing with direct dyes.
Patent GB-461867-A (GB)
Title: Improvements relating to chocolates
IPC: A23G1/50
Filed: 1936-08-19
Abstract: 461,867. Confectionery. KUNZLE, C. Aug. 19, 1936, No. 22807. [Class 28 (i)] [Also in Group V] To prevent the undersides of chocolates, particularly chocolate coated confections, from being rubbed and scratched, projections d are formed thereon. As shown, the projections are formed by placing the still plastic goods upon paper, metal foil or the like having depressions c. The paper &c. may, in addition, have the usual relief markings corresponding to the trade name or the like.
Patent GB-1144803-A (GB)
Title: Improvements in or relating to blind riveting assemblies
IPC: B21J15/04
Filed: 1966-05-23
Abstract: 1,144,803. Rivets. GEORGE TUCKER EYELET CO. Ltd. 23 May, 1966 [24 May, 1965], No. 22810/66. Heading F2H. [Also in Division B3] A blind rivet assembly comprising a tubular rivet and a breakoff mandrel is made by a method in which the rivet is extended round the stem of the mandrel. A tapered shoulder formed on the rivet by shoulder 50 is brought square to the rivet axis. When the rivet is set by pulling the mandrel wedges 22 shear the tail of the rivet, Figs. 2 and 3 (not shown), into four sections (56) which spread out against the inaccessible face of the work and the mandrel then breaks at a groove 28. Material from the conical head (58) of the rivet is swaged into grooves 24 by the pressure of the nose of the setting tool during the setting operation.
Patent GB-1197722-A (GB)
Title: Panoramic Picture System.
Inventor: KEEBLE ROY HERBERT WILLIAM
IPC: G03B37/02
Filed: 1966-05-23
Abstract: 1,197,722. Panoramic cinematography. R.H.W, KEEBLE. Aug.18, 1967 [May 23, 1966], No. 22973/66. Headings G2A; G2E and G2J. In a panoramic picture system for still or cine photography, the subject is photographed by means of a concave mirror 5 which directs light from the subject into the camera objective 2 via an intermediate plane or convex mirror 6, the photographic image 30 obtained being projected on to a deeply curved screen by a projector in front of which are placed a similar mirror system. The mirror system may be in the form of an attachment 3 for use with a standard lens 2 which is carried on an adjustable arm 8 secured to the tripod bush at 9. The mirror 5 may be non- spherical to provide anamorphotic distortion which is corrected in projection of the image. The projector is mounted below the screen, the mirror attachment being carried in a tubular structure attached to the base of the screen. A flexible screen stretched between upper and lower bowed rods by vertical struts is described.
Patent GB-1310239-A (GB)
Title: Method and apparatus for the manufacture of a fancy yarn
IPC: D01H5/36
Filed: 1970-05-12
Abstract: 1310239 Cored fancy yarn; friction false twisting MOULINAGE ET RETORDERIE DE CHAVANOZ 12 May 1970 [12 May 1969] 23011/70 Headings D1F and D1W A method of manufacturing a fancy yarn comprises feeding a core yarn 1 and an effect yarn 7, the effect yarn 7 being overfed relative to the core yarn 1, and frictionally false-twisting the two yarns to form the fancy yarn 10. The overfeed of the effect yarn may be uniform or non-uniform depending on the effect to be achieved. The yarns 1 and 7 are preferably fed at different directions and preferably at an angle of 30‹ to 90‹ to one another. At least one of the yarns undergoes a change of direction on contact with the friction surface. The two yarns may be joined at the friction surface or at a point upstream of the friction surface, which point is constantly moving. The yarns may consist of filaments, spun yarns or rovings, the materials mentioned being polyamide and polyester, but other natural or synthetic materials may be used. In a preferred embodiment, the friction false-twister comprises a spindle 5 having an annular friction surface 6. The core yarn 1 alone or both the core yarn 1 and the effect yarn 7 may be passed through the spindle 5. Various embodiments with different angles of contact with the friction surface are described. The core yarn may be drawn prior to falsetwisting. In a preferred form of the apparatus, the yarns pass through a movable guide 40 upstream of the friction false-twister 46. The guide 40 slides freely on a wire 43. The guide 40 is imparted a reciprocatory movement by means of a metal strip 44 which vibrates under the influence of an electromagnet 45. In an alternative embodiment, the reciprocatory movement is imparted to the guide by means of a compressed air jet.
Patent GB-419109-A (GB)
Title: Improvements in or relating to illuminating apparatus for lighthouses, beacons and the like
IPC: F21V19/00
Filed: 1933-08-17
Abstract: 419,109. Lighthouse, beacon, &c.lamps. GAS ACCUMULATOR CO. (UNITED KING- DOM), Ltd., and GOODWIN, G., Beacon Works, Brentford, Middlesex. Aug. 17, 1933, No. 23028. Addition to 418,996. [Classes 75 (i) and 75 (iv).] Convertible gas and electric lamps; burners, mounting.-In a lighthouse, beacon, or like lamp in which either or both the normal and emergency sources of light utilize a fluid illuminant, and the latter is employed to effect automatically the replacement of the normal source by the emergency source when necessary, as described in the parent Specification, the two sources are carried by separate carriers which are mounted upon a pivot or pivots located below the focal point of the optical system and these carriers are connected with actuating means for simultaneous movement in such a manner that the inoperative source is located below the focal point of the optical system and does not obstruct light from the operative source at the focal point from passing to the optical system. In the form shown in Fig. 1, an electric lamp bulb 2 constituting the normal source and a gas burner 4 constituting the emergency source are carried by separate carriers 3, 5 which are mounted on a pivot 6 and have lower extensions which are pivoted at 7, 11 to arms 8, 12 which are mounted on pivots 9, 13 and are rigid with pinions 10, 14 adapted to engage a pivotal rack member 17 which is connected by a rod 16 to the diaphragm 15 of the actuating means described in the parent Specification. The system is biassed by a weight 18 mounted on an arm projecting beyond and rigid with the rack member 17, and its movement is limited by stops 19. In the form shown in Fig. 3, the bulb 2 and the burner 4 are carried by separate bell crank levers 3<a>, 3b and 5<a>, 5b which are pivoted at 20, 21 and are interconnected by a link 22. An arm 23 rigid with the bell crank lever 5<a>, 5<b> is connected by the rod 16 to the diaphragm 15, and the weight 18 is rigid with the bellcrank lever 3<a>, 3<b>.
Patent GB-466387-A (GB)
Title: Apparatus for forming unit portions of ice cream or the like
IPC: A23G9/28
Filed: 1936-08-21
Abstract: 466,387. Cutting ice - cream &c. GAUNT, J. G. (Vogt Processes, Inc.) Aug. 21, 1936, No. 23055. [Class 87 (ii)] Apparatus for dividing a bar of ice-cream 18 into a number of separate portions comprises a table 10 supporting a tray 17 which contains the cream, the table being provided with means for actuating vertically movable blades for cutting the cream and with means for heating the tray to loosen the cream. The heating means may consist of a perforated steam pipe 13 in a chamber 12 situated beneath the table. A slot 16 is formed in the table above the pipe 13 and means may be provided on the table for positioning the tray 17 accurately above the slot. The flow of steam through the pipe 13 is controlled by a valve 15. Above the slot is a vertically movable blade carrier 21 carrying blades 25 having a shape corresponding to the shape of the tray 17. The blade carrier is held in the raised position by springs 22 and is lowered by a pedal 26 and links 29, the valve 15 being opened simultaneously with the lowering of the blades by a link 31. The valve is normally held in the closed position by a spring 35 and the pedal 26 is raised by a spring 36. To prevent the cream sticking to the blades and being lifted out of the tray there is arranged above the tray a plate 37 having slots through which the blades pass. The tray may be provided with a chamber 40 as shown in Fig. 5 to receive the steam from the pipe 13. Instead of steam, hot water or gases or electric heating may be used.
Patent GB-1343636-A (GB)
Title: Recovery of platinum group metals
IPC: G01B9/02
Filed: 1971-04-19
Abstract: 1343636 Gauging KEARNEY & TRECKER CORP 19 April 1971 [5 March 1970] 23071/71 Heading B3B [Also in Divisions G4 and G2] Apparatus for moving a machine tool to a selected position comprises a frame 14, 14A, a work-table 20 carrying a laser interferometer 54, a column 32 on which a tool supporting head 36 is relatively movable, motors 21, 35 and 43 for moving the work-table, the column and the head respectively, and a counter 58 for measuring the change in path length of the laser beam due to the movement of the work-table, column or head. Knobs 62, 64 and 63 in a housing 56 control the movement of the work-table in the "X" direction, the movement of the head in the "Y" direction and the movement of the column in the "Z" direction. The beam from the laser, which is a continuous helium-neon gas laser, is reflected from a fixed reflecting surface 76X, reflecting surfaces 79Z, 84Y supported on the column 32 and from a trihedral prism in a housing 88. The return beam from the prism is reflected back to the interferometer where it is passed through a quarter-wave plate and combined with a reference beam of fixed path length. The interfering light beams are directed to a pair of photo-detectors which are connected to a circuit 93 containing amplifiers, squarers and logic circuits. The output of the circuit 93 is connected to the bidirectional counter 58 which provides a digital display 57 of the amount of movement in the X, Y or Z direction due to operation of the control knob 62, 64 or 63. The counter display is reset to zero by operating a control switch 98. The machine tool is received in a spindle 51 journalled in the head 36 by a controllable power drive (not shown). Reference has been directed by the Comptroller to Specification 1,196,281.
Patent GB-991256-A (GB)
Title: A new or improved fluid control valve
IPC: B64D25/10
Filed: 1962-06-15
Abstract: 991,256. Compressed gun discharge means. J. MARTIN. Feb. 12, 1963 [June 15, 1962], No. 23180/62. Heading F4P. A striker pin 7 is displaced within a guide sleeve 8 and against the action of a spring 13 to the position where it punctures the closure disc 4 of a compressed gas container 1 either by means of a first piston 15 when supplied with fluid pressure through a port 18 of a housing 2 or by means of a second piston 16 in tandem with piston 15 when mechanical pressure is applied to the underside thereof. An axial spigot 20 of piston 16 abuts the cam surface 22 of a bell-crank lever which is displaceable to the operating position on removing a cap 25 from the housing 2. Released gas is discharged through radial passages 12 leading to a peripheral groove 11 of a tubular plug 10 and from thence through an outlet port 6. Specification 991,254 is referred to.
Patent GB-407260-A (GB)
Title: Improved apparatus for delivering predetermined quantities of granular or pulverulent material
IPC: G01F11/24
Filed: 1933-08-19
Abstract: 407,260. Delivering measured quantities of granular material. TANNER, J. F., 1, Rupert Street, Bristol. Aug. 19, 1933, No. 23200. [Class 106 (v).] In apparatus for delivering measured quantities of granular material comprising a hopper a, an outlet chute (not shown) and a rotary measuring chamber n with a port n' adapted to register alternately with the hopper and the chute, the measuring chamber, which is in the form of a horizontal cylinder, is provided with a fixed scraper r adapted to remove adherent material from the cylindrical wall of the chamber. The chamber is mounted within an outer fixed cylinder m and as shown is divided by a partition o into two compartments each having a scraper. An adjustment of capacity may be made by means of a movable end wall s operated by a cap t screwing on to the outside of the outer cylinder m. The measuring chamber n is rotated by means of a handle g and gearing h. The scraper or scrapers are frictionally held on fixed bearings.
Patent GB-1112765-A (GB)
Title: Improvements in or relating to semi-conducting ceramic glaze compositions
Inventor: BLOOR ERNEST CHARLES
IPC: C03C8/04
Filed: 1965-06-01
Abstract: A semi-conducting ceramic glaze composition composed of a base glaze within which is incorporated "blue tin oxide" and zinc oxide, the amount of blue tin oxide present being within the range 12.5% to 25% by weight of the total composition, and zinc oxide is present in an amount within the range 1-12% by weight of the total composition. Blue tin oxide is prepared by calcining at an appropriate temperature a mixture of tin oxide and antimony pentoxide (Sb2O5), preferably in proportions of between 95-99.5 mole per cent of tin oxide and 0.5-5 mole per cent of Sb2O5.  A suitable base glaze has the molar composition: X 0.1-0.35 moles; Al2O3 0.25-0.6 moles; Y 0.9-0.65 moles; BaO3 0-0.2 moles; SiO2 2.5-6.0 moles, X being any oxide or combination of oxides of metals of Group Ia in the Periodic classification, and Y being any oxide or combination of oxides of metals in Group IIa of the Periodic classification.  The glaze is used to coat ceramic articles, such as high voltage electrical insulators, for controlling the voltage distribution over the surface of the article.  The glaze may be applied by dipping or spraying, careful control of time or volume of glaze being necessary to obtain the correct unfired thickness for producing surface resistivities within the required range. Thickness up to 0.04 inch may be obtained by multiple dipping, the preferred thickness being 0.01-0.02 inch such thicknesses giving a surface resistivity of less than 100 megohms per square. The glaze may contain up to 1% of organic binders such as sodium carboxymethyl cellulose to strengthen the glaze layer. The glaze is fired at temperatures between 1050 DEG  and 1250 DEG  C.
Patent GB-598791-A (GB)
Title: Improvements in and relating to electron multipliers
IPC: H01J43/04
Filed: 1945-09-10
Abstract: 598,791. Electron multipliers. M-O VALVE CO., Ltd., and WARREN, G. W. Sept. 10, 1945, No. 23282. [Class 39(i)] An electron multiplier comprises within a sealed envelope an anode, a primary thermionic cathode and one or more secondary cathodes which form part of, or are electrically connected to, metal plates sealed through the envelope. The secondary cathodes may be in the form of plane grids covering apertures in the metal plates, or as shown in Fig. 2 are constituted by cylindrical skirts 14, 15, 16 secured to plates 18, 19, 20. Cylindrical accelerator grids 21 are connected to the anode 12 and the secondary cathodes, and arranged within the preceding cathodes. One or more control grids 13 may also be provided.
Patent GB-1530114-A (GB)
Title: Raster scanned imaging system
IPC: H04B1/66
Filed: 1977-06-02
Abstract: 1530114 Facsimile transmission XEROX CORP 2 June 1977 [3 June 1976] 23458/77 Heading H4P Expanded (four or eight level} gray scale information is recovered from binary quantized video input data in a raster scanning facsimile system by choosing a gray scale value for a given picture point in dependence upon the binary values of the input data for the same picture point as well as values appertaining to input binary values associated with picture points spaced vertically, and horizontally with respect to such same point. For each gray scale value y<SP>1</SP> to be predicted, a set 32-34 of serially connected registers assemble an n Î m {3 Î 3} matrix pattern of input binary picture elements x 1 -x 9 . Unit 31, comprising a programmable ROM or hard-wired look-up table, provides a value y' for each pattern x 1 -x 9 , the particular value y<SP>1</SP> being the statistically most likely value for the pattern, or, for patterns x 1 -x 9  which are relatively unlikely to occur, a less than optimum value of y' may be acceptable. The specification discloses a complete table, with expected pattern frequencies, and interpolation errors, for a nine bit pattern to four level gray scale conversion. The input data is either received without further processing from an a/d converter receiving an analogue raster input, or the a/d output may be compressed, e.g. run-length encoded, and correspondingly decoded before gray scale recovery.
Patent GB-217874-A (GB)
Title: Improvements relating to circular knitting machines
IPC: D04B9/20
Filed: 1923-09-21
Abstract: 217,874. Barth, E. [Firm of]. June 20, 1923, [Convention date]. Circular machines ; needles. - Seamless stockings and socks are produced in a circular machine having latch needles with their butts formed on resilient arms which are operated by a segmental cam and levers to put the butts out of action without altering the positions of the needles in the machine. The levers 14 which act on the resilient arms of the needles to move their butts 9 out of the path of the needle-operating cams 10 rotate with the needle cylinder and are operated by the segmental cam 20. This cam is shown in inoperative position and may be raised into operative position by rods 18, and to enable more needles to be thrown out of action gradually as the heel is knitted adjustable cam extensions are provided. These cam extensions carry star-wheels 27, 28 which as the needle cylinder reciprocates are operated by pawls 31, 32 to cause, their pinions to travel step by step along the toothed ring 17. When all except a few needles have been put out of action two pawls 38, 39 are brought into action to operate the star-wheels 27, 28 so as to retract the cam extensions step by step.
Patent GB-1198476-A (GB)
Title: Preparation of Halopyridines
Inventor: FIELDING HAROLD CROSBIE
IPC: C07D213/61
Filed: 1967-05-22
Abstract: 1,198,476. Preparation of perhalopyridines. IMPERIAL CHEMICAL INDUSTRIES Ltd. 29 April, 1968 [22 May, 1967], No. 23669/67. Addition to 1,004,375. Heading C2C. Perhalopyridines having the formula where n is 1 to 5 are prepared by heating a perfluorochloropyridine having fewer fluorine atoms in the molecule than the desired product, or pentachloropyridine with a dry alkali metal fluoride in a polar, aprotic, liquid, organic reaction medium at 180-250‹ C., the volatile reaction products after leaving the reaction medium being continuously condensed and returned thereto at a point below its surface. An example is given of the preparation of pentafluoropyridine and monochlorotetrafluoropyridine from dichlorotrifluoropyridine by reacting it with potassium fluoride in tetramethylene sulphone.
Patent GB-1271996-A (GB)
Title: Electrical contact clip
Inventor: HUNG CHI-TSAN
IPC: H01R24/76
Filed: 1969-05-09
Abstract: 1,271,996. Switch contacts. CHI-TSAN HUNG. 9 May, 1969, No. 23777/69. Heading H1N. An electrical contact clip 10 of the type formed of a metal strip in the general shape of a U with inwardly folded jaws to provide a gap to receive in use an electrical contact blade has apertures 18 in the side arms of the U and an arcuate spring member 20 is mounted to extend into apertures 18 and resiliently press the jaws inward to prevent permanent widening of the gap between the jaws during use of the clip. Spring 20 may be made of steel wire.
Patent GB-481107-A (GB)
Title: Improvements in and relating to electric vibrators
IPC: H02K33/04
Filed: 1936-08-31
Abstract: 481,107. Vibratory treatment apparatus. JENKINS, G. M. O. Aug. 31, 1936, No. 23784. [Class 81 (ii)] [Also in Group XXXV] Apparatus for producing vibrations particularly applicable for medical purposes comprises a main supporting sheet of flexible material such as brass having secured thereupon in spaced relation two or more members magnetizable by alternating current to produce relative movements thereof resulting in repeated flexure of the sheet. As shown, the brass sheet 1 has secured upon it by bolts 5 a laminated magnetizable member 4 arranged adjacent to long and short limbs of a U-shaped laminated magnetizable member 2 secured to the sheet at its base only by bolts 3. The members form a substantially complete magnetic circuit and one or both carry magnetizing coils 6 energized by alternating current. The bolts 3 also carry insulating strips 7, provided with terminals 8 for the coils 6, and a mounting strip 9. Two units, as above may be mounted with intermediate packing on the underside of a stool and may be connected to the supply through a switch permitting series or parallel connection of the units and also, if desired, closing of the circuit under the weight of the patient.